Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Early American humans hunted car-size armadillos and used their shells for houses.
12
Human hair and fingernails continue to grow after death.
7
One human hair can support 3 ounces.
191
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
The human sigh acts as a physiological reset button.
23
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515